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How does the water cooling system of a metal melting furnace work?

Author : Hongteng Time: 2022-03-29

The water cooling system is a very important supporting equipment in the use of the metal smelting furnace. Today we know some information about the water cooling system.

The parts that need water cooling are: intermediate frequency power supply (generator set and thyristor frequency conversion device, of which the cooling water for thyristor frequency conversion device needs to be softened), inductors, capacitors, flexible cables, etc.

In order to save water, we usually adopt the method of circulating cooling. The cooling water circulation system includes water pump, closed cooling tower, water tank, etc.

The importance of the circulating water system: The smelting furnace facility is a high-power power electronic device. Important components such as thyristors, smoothing reactors, capacitors, induction coils, and water-cooled cables all require water cooling. The inner diameter of many cooling pipes is only about 8mm.

If the power of the electric furnace is small, only the circulating water pool can be used. For electric furnaces with higher power, the method of circulating water pool and cooling tower should be adopted. When designing, it is necessary to separate the circulating water of the electric furnace and the electric cabinet, because the water temperature of the electric furnace is about 55 °C, and the water temperature of the electric cabinet is about 40 °C, and the temperature difference is more than ten degrees.

If the production line can meet the conditions, or the local water quality is very hard, try to use pure water (distilled water) in the circulation system.

At present, there are two types of pure water circulation system products: closed type (copper tube core) and heat exchanger type. The former occupies a small area, but the cost is high, and the latter occupies a large area, but the cost is low. Both of these methods can complete the closed cycle of pure water to achieve cooling.

When some users use the smelting furnace, they do not pay attention to the configuration of the water cooling system, which will cause the circulating water temperature to be too high, the circulating system will enter the sundries, causing scaling and water blocking, and failures such as silicon burning and reactor burning will occur. The entire production line causes unnecessary losses.

This is what we share today, welcome to pay attention to Luoyang Hongteng, let us solve more doubts about metal melting furnaces for you.

Video of the use process of the melting furnace

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